Where accelerometers or other types of strong motion instruments have been installed, readings and interpretations from these instruments should also be included in the report. This report will be used to form a basis for major remedial work when required. (Exempt from requirements control under paragraph 7-2b, AR 335-15.) The report will include summaries of the instrumentation and other observation data for each inspection, for permanent record and reference purposes. For structures which have incurred earthquake damage a formal technical report will be prepared in a format similar to inspection reports required under ER 0. (5 ) Where determined necessary, a detailed, systematic engineering inspection will be made of the post-earthquake condition of each structure, taking into account its distinctive features. All such unusual conditions should be evaluated and reported. Ground motion induced landslides may occur in susceptible areas of the reservoir rim, causing embankment overtopping by waves and serious damage. Also, new seepage paths may be opened up within the foundation or through the embankment section. Induced dynamic loading on earth dams may result in loss of freeboard by settlement, or cause localized quick conditions within the embankment sections or earth foundations.
William h. harsha lake project office cracked#
Examples are symptoms of induced stresses in buildings made evident by cracked plaster, windows or tile, or in binding of doors or windows cracked or shifted bridge pier footings or other concrete structures turbidity or changed static level of water wells cracks in concrete dams or earth embankments and misalignment of hydraulic control structures or gates. Any post-earthquake change in appearance or functional capability of a major Civil Works structure should be evaluated and reported. Many types of structural damage can be induced by ground motion from earthquakes or from large nuclear blasts (which also tend to induce ground vibrations in the more damaging lower frequency ranges). The evaluation of these structures will be based upon post-earthquake inspections which will be conducted to detect conditions of significant structural distress and to provide a basis for timely initiation of restorative and remedial measures. Also included are major levees, floodwalls, and similar facilities designed and constructed by the Corps of Engineers and for whose structural safety and stability the Corps has a public obligation to be aware of although not responsible for their maintenance and operation. These structures include dams, navigation locks, powerhouses, and appurtenant structures, (intakes, outlet works, buildings, tunnels, paved spillways) which are operated by the Corps of Engineers and for which the Corps is fully responsible. Civil Works structures which could be caused to fail or partially fail by an earthquake and whose failure or partial failure would endanger the lives of the public and/or cause substantial property damage, will be evaluated following potentially damaging earthquakes to insure their continued structural stability, safety and operational adequacy. Maintenance boundaries can be found on maps located in Exhibit A.Įxterior Improvements, Operation and Maintenance of Exterior Improvements, Irrigation, Planting Irrigation, Planting Preparation, Soil Preparation, Landscape Grading.(d ) Policy.
The Schedule of Supplies/Services for this contract provides a listing of the estimated quantities of maintenance services to be provided. The Contractor shall provide all personnel, materials, supplies, tools, equipment and transportation required to perform these services, unless otherwise specified. The use of any nonstandard methods or practices, or any deviation from the following specifications must receive prior approval of the TPOC. The services shall consist of cleaning and servicing public use areas and facilities at the Lake Office and recreation areas and removal of refuse and litter from the designated areas at William H. Native Prairie Landscaping- Youngstown OH S-FY19 New Contract - Cemetery Grounds and Facilities Maintenance Service - Dayton National Cemetery Mowing and Maintenance Services at Deer Creek Lake, Mt. Liberty Park/Pond Brook Phase 3 Ecological Restoration 88th Readiness Division Grounds Maintenance and Snow Removal Services
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